Silent railroad-crossing



G. C. MELROSE.

SILENT RAILROAD CROSSING.

APPLICATION FILED SEPT. s. IIIIII.

Patented July 1, 1919.

2 SHEETS-SHEET l.

INVENTOR.

eafge C. /VQZ 705e. y

BY im ATTORNEYS.

G. c. MELROSE.

SILENT RAILROAD CROSSING.

APPLICATION FILI-:D SEPT. s. 1918.

1.308,7 1.9. Patented July 1, 1919.

2 SHEETS-SHEET 2. M. 67 Fa'g. f n yf L .X INI/ENToR.

62079@ 6I /Ve Z rose,

GEORGE C. MELROSE, OF EEDONDOEEAOH, CALIFORNIA.

sILENn` RAILROAD-CROSSING.

7 .'-T'o all 'whmt may Concern:

c Be it known thatV I, GEORGE C. MELROSE, a "fcitizen of the United-States, residing at e 'Redondo Beach, in the county of Los Anjgeles and State of California, have invented newV and useful v Improvements in Silent Railroad-Crossings, of which the following 'isa'specilioation l My invention relates to vsilent railroad 140 "crossings, and consists of the'novel features l" "herein shown, described and claimed.

` y Figure 1 isa top plan view of a silent rail- Ilroad'crossing embodying the principles of my invention', parts being broken away and "shown in section.

Fig. 2 is a'fragmentary vertical sectional detail on the line 2-2 of Fig;1. l,

Fig.v 3is a fragmentary vertical sectional detail at right angles to" Fig. 2 and on the f Fig. V4 Vis a fragmentary vertical sectional detail on the line 4-4 of Fig. 1.

The track of the main line 1 adjacent to the crossing' comprises the' rail 'sections 2 and W2 5 3 at one side ofthe crossing,`the intermediate 4* `rail sections 4 and 5 in the crossmg and the 'rail sections 6 `andl7 at the other side of the crossing yfrom the rail sections 2 and 3.4 The "track of the crossing line 8 compr1ses the 30' 'rail sections 9 and 10 at one side of the cross- "ing,A the intermediate rail sections 11 and 12 in the crossing, and the rail sections 1'3 and 14 atthe other sidefof the crossing from the rail sections 9 and 10. The rail sections2, 3,

w 4, 5,6, 7, 9, 10, 11, 12, 13 and 14 are preferably built vup by casting, forging, welding and ,theV liketo make apractically `integral mass.' Av central pivot post 15 extendsl upwar'dly `from the base 16 at the center of the ,40" square formed by the railsections 4, 5, 11

,5" "IQ and 12.

Levers 1 7 and 18 arey mounted through large openings 19 in the yvebs 20 of vthe rail sections 4 and 5, and placed one on "top of the other upon the pivot post 1 5, and

Y a pivotfbolt 21" is inserted downwardly il through the levers 17 and 18 and tapped ,into

"the pivot'post 15.v A slide-way 22 is formed at an angle of 45 across the cornerwhich would be'formed by the meeting of the rail sections 14 and 6. yA tongue groove 23 exytends laterally one way at the bottom of the vslide-way 22. A slide 'rail 24 is placed on, the bottom of the slide-Way 22 at the opposite fside from the tongue groove 23, and' secured t5 lin place by screws 25, said slide rail having a "itongue 26V ext'endingfinto the lslide-way22. f

y Specification of Letters Patent. 'Application led September 6, 1918, i Serial No. 252,960.

.Patented July 1, 1919.

'The right. angle triangular shifting rail section 27 is mounted in the slide-way 22 and has a tongue 28 extending into the tongue L groove '23, and a groove 29 into which the tongue 26 extends, so as to hold the 4shifting section 27. from being raised out of the slideway, and so as to allow the section to' slide endwise.

A lever 30 is inserted horizontally through the opening 31 in the shifting section 27, and a 'pivot screw ,32 is inserted upwardly through the shifting section and through the center of the lever 30 and tapped into the .body of the shifting section 27 the ends of 4the lever 30 extending beyond the faces 33 -and 34 of the section. The shifting section 27 'islarger than the corner formed by the yrail sections 6 and 14 would be, so that when vthe face 33 isA in line with theinner faces 35 1and 36 ofthe sections 4 and 6 the shifting :section 27 will reach across the car wheel flange groove 37 and form a continuous rail,

and so that when the shifting section 27 is moved the other Way the face 34 will be in line with thefaces 38 and 39'ofthe sections -12 vand ,14, and across the car -wheel flange groove 40 and form a continuous rail the other way. In a like manner the right angle triangular shifting rail section 41 is mounted at the corner that would lbe formed by the rail sections 7 and 10, and the right angle i triangular shifting rail section 42 is mounted at the corner that would be formed by the rail sections 9 and 3, and the right angle triangularshifting rail section 43 is mounted at Vthe corner that would be formed by the rail sections 2 and 13, and a lever 44 is carried by the shifting section 41 similar to the lever 34. A` similar lever 45 is carried by the shifting section' 42, and a similar lever 46 is r carried by the shiftingsection 43. The endsof the levers 30, 44, 45 and 46 are connected :.to the ends of the levers 17 and 18 by pivots 47, 48,49 and 50, so that the shifting sections .'27, 41, 42 and 43 will operate simultaneously. A link 51 is connected to the pivot 47. A link- 52 is connected to the pivot 50 and the links 5l, and 52 .are connected by a pivot 53.

In a like manner, a link 54 is connected to the lever 3() at the opposite end from the pivot 47 by a pivot 55. A link 56-is connected to the opposite end of the lever '44 from the pivot 48 by a pivot 57, and the Alinks 54 and 56 are connected together by a pivot 58. A link 59 is connected to the pivot '48. A link 60 is connected to the pivot 59,

Y and the links 59 and 60 are connected to-v gether by pivots 6.1. A linkr62 is connected to the opposite endiofthe lever 45 from the right angle Ytriangular shifting rail section pivot 49 by a pivot 63. A link64 isconnected to the opposite endY of the lever, 46 fromthe pivot 50 by a pivot 65, and the links 62 and y64 are connected together by a pivot 66. l l.

An actuator construction 67 is provided in combination with the rail Vsection14, and

similar' actuator constructions 68, 69, 70, 71, 72, 7 3y and 74- are provided in combination with the rail sections 6, 7,v 10, 9, 3, 2 and 13 respectively. y p p The actuator construction 67 isashown in detail-n Figs. 2 and 3. y A wedge shaped actuator head 75 is, mounted in the rcar Vwheel flange groove 37, said actuator head 75 having an inclinedupper face 76-with its lower end pointing away from the crossing, so that when a car wheel fiange approaches the crossing it will run lupon the inclined face 76 and press the head 75 downwardly. An arm 77 extendsdownwardly from the head 75 'through a bearing 78 andthe head 7 5is mounted for vertical reciprocationinA a housing chamber 79. A pivot 80 is mounted transversely of the rail web 81. vAbell-crank lever 82 is mounted upon the pivot 8G and has a slotted bearing 83 at its horizontal end, and a pin 84 fixed in the lower end ofthe arm 77 operates in the slot of the bearing 83, so that as the head 75'goes up and down the bell-crankl lever S2 is vibrate'd. An evener' 85 is mounted horizontall trans- -versally of the track, and one enc of the evener 85 is connected to the upper end of the bell-crank lever`82. A draw bar 86 is `connected to the center of the evener `85,

and to pivot 53.

In a similar manner the actuator head 87 is connected tothe other end of the evener 85. In a like manner the actuator heads 88 and 89 of the actuatorsy 68 and 69 are connected to the kevener 90, and the evener 90 is connected to the pivot 5S, the aetuator'heads l move forwardly in the direction indicated by the arrow'lOO, thereby pulling the pivot 66 forwardly and pushing through the links 64 and 62, and the levers y46 and 45 to move the right angle triangular shifting rail section 43 and 42 to bring the faces 33 into line with` the inner faces of the rail sections 2, 3, 4 and 5, and across the car wheel flange groove 101, and the. power will be transmitted through the levers 17 land 13 to move the 27 and 41 to bring the faces 33 into line with and 7, and across the car wheel iiange groove 37, thereby making continuous noiseless rails Afor the main track 1 and for the car to pass line 8. )Then the'car wheel flanges upon the crossing line going inthe direction indicated by the arrows 102 will strike the actuator heads 91 and 92, throw the evener 93 in the direction A`indicated by the arrow 103,' thereby the inner faces of the rail sections 4, ,5, 6 Y

moving the right 'angle triangular shifting rail sections 27, 41, 42 and 43 to make a con- -tinuoustrack out of the crossingline 8.

It is obviousthat the operation will be the same for a car coming in any one of theV four directions, that no springs or counterbalances are required, that each car operates the crossing for itself, and that .the crossing remains in that position until moved vloy'another car upon the other track.

Various changes may be made without departing from the spiritof my invention as claimed.

I claim: Y lV 1 1. A silentrailroad crossing comprising, track rail sections forming a crossing, there being diagonal slots across the corners formed by the outside Vrail intersections; right angle triangular shifting rail sections .slidingly mounted in the diagonal slots; two levers extending through two inside rail sections, and crossing at the center of the square; a fixed pivot extending through the crossed levers;.second levers pivotally connected to the right angle triangular shifting rail sections and pivotally connected to the ends of Vthe crossed levers; links pivotally connected to the second levers, each pair of links being connected together; actuator heads mounted for vertical reciprocation in thev car wheel fiange grooves; arms extending downwardly from the actuator heads;

Y positions to cross the car wheel flange grooves of the other track.

2. A silent railroad crossing comprising,

track rail sections forming a crossing, there being diagonal slots extending clear across the corners formed by the outside rail intersections from the space between the railsof one track to the Space between the rails of the other track, shifting rail sections slidingly mounted in the diagonal slots, two 1evers ,extending under the tread portions of' two inside rail sections and crosslng at the4 center, a fixed pivot extending through the crossed levers, second levers pivotally con- Y*nected to the shifting rail sections and pivotally connected tothe ends of the crossed levers, links pivotally connected to the second levers, each pair of links being connect' and third levers pivotally connected to the second links and pivotally connected together and connected to the other actuator heads, so that when the car wheel flanges running upon one track press downwardly on the actuator heads the shifting rail sections will be moved out of the way of the approaching car wheel flanges and into position to cross the car wheel flange grooves of the other track, and so that when the car wheel flanges running` upon the other track press downwardly on actuator heads the shifting' rail sections will be again moved.

In testimony whereof I have signed my name to this specification.

GEORGE C. MELROSE.

"Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

' Washington, D. C. 

